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Charging circuit and charger capable of automatically identifying battery polarities

A charging circuit and automatic identification technology, applied in battery circuit devices, current collectors, circuit devices, etc., can solve problems such as battery or charger burnout

Inactive Publication Date: 2013-06-26
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the battery to be recharged is placed in the charger at will and then charged, it is likely that the battery or the charger will be burned due to the reverse connection of the battery.

Method used

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  • Charging circuit and charger capable of automatically identifying battery polarities

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] Embodiments of the present invention will be described below with reference to the accompanying drawings. see figure 1 , is a circuit diagram of an embodiment of a charging circuit for automatically identifying battery polarity in the present invention. The charging circuit includes a power conversion module 100 and a polarity identification module 200 . The power conversion module 100 is used to convert AC power into DC power and is electrically connected ...

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PUM

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Abstract

The invention discloses a charging circuit capable of automatically identifying battery polarities. The charging circuit comprises a power supply converting module and a polarity identifying module, wherein the power supply converting module is used for converting an alternating current power supply into a direct current power supply; the polarity identifying module comprises a first positive-negative-positive (PNP) triode Q5, a second PNP triode Q7, a first negative-positive-negative (NPN) triode Q6, a second NPN triode Q8, a first resistor R14, a second resistor R13, a third resistor R15 and a fourth resistor R12; when a first charging terminal is connected with a battery positive pole, the second PNP triode Q7 and the first NPN triode Q6 are connected, and a battery is charged through the second PNP triode Q7 and the first NPN triode Q6; and when the first charging terminal is connected with a battery negative pole, the first PNP triode Q5 and the second NPN triode Q8 are connected, and the battery is charged through the first PNP triode Q5 and the second NPN triode Q8. By means of the charging circuit, nonpolarity charging of the battery is achieved. The invention further discloses a charger capable of automatically identifying the battery polarities.

Description

technical field [0001] The invention relates to the field of battery charging, in particular to a charging circuit and a charger for automatically identifying battery polarity. Background technique [0002] Existing chargers usually need to distinguish the positive and negative poles of the battery. When charging the battery, the battery to be charged needs to be placed in the charger according to the positive and negative poles marked on the charger. If you put the battery to be charged into the charger at will and then charge it, it is likely that the battery or the charger will be burned out due to the reverse connection of the battery. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a charging circuit and a charger that automatically recognizes the polarity of the battery, so that the user does not need to distinguish the positive and negative poles when charging the battery. [0004] In order to solve the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/02
Inventor 周明杰谢万源
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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